diff --git a/pages/research/permanence-calculator/components/controls/curve.js b/pages/research/permanence-calculator/components/controls/curve.js
index 1fc318b7..2aee70d0 100644
--- a/pages/research/permanence-calculator/components/controls/curve.js
+++ b/pages/research/permanence-calculator/components/controls/curve.js
@@ -21,7 +21,7 @@ const Curve = ({
   const [displayValue, setDisplayValue] = useState(value[0][1])
 
   const initializeChart = () => {
-    const out = new CostCurve(
+    const out = CostCurve(
       container,
       theme,
       value,
diff --git a/pages/research/permanence-calculator/components/timeline.js b/pages/research/permanence-calculator/components/timeline.js
index fa66c174..de88a979 100644
--- a/pages/research/permanence-calculator/components/timeline.js
+++ b/pages/research/permanence-calculator/components/timeline.js
@@ -45,7 +45,7 @@ const Timeline = ({ options }) => {
 
   useEffect(() => {
     if (container.current.offsetWidth > 0) {
-      chart = new TimelineChart(container, theme)
+      chart = TimelineChart(container, theme)
     }
 
     return function cleanup() {